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期 刊 ：植物保护学报 1999年

关键词：油菜；菌核病；降雨量；防治阈值；气候条件；病害；

Keywords:rape, sclerotiorum, rainfall, yield, control threshold,

摘 要 ：油菜菌核病是里相河农下区首要病害，常年发病指数约２０％，损失产量１５％－３０％。对兴化，扬州油菜菌核病连续８年的观测结果表明，油菜开花期的降雨量是导致并加重菌核病的决定因素，而日均气温对菌核病的影响不大。

Abstract:Sclerotinia sclerotiorum (Lib de Bary) in rape is a primary disease. The annual incidence was about 20% and the yield loss caused was 15% -30% in Lixiahe area. The 8 year consecutive survey indicates that the rainfall in rape‘s flowering stage was a criti

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